class_docstr: Concrete class that implements an interface to Microsoft Visual C++,
  as defined by the CCompiler abstract class.
code: def library_dir_option(self, dir):
      return "/LIBPATH:" + dir
  
imports: import sys, os
  from distutils.errors import DistutilsExecError, DistutilsPlatformError, CompileError, LibError, LinkError
  from distutils.ccompiler import CCompiler, gen_lib_options
  from distutils import log
label_desc: Use image node_id 7 for calling the MSVCCompiler obj's underlying member method code with example usage: obj.library_dir_option(dir) and returns: unknown